Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.85 (2)	2.28 (2)	3.073 (2)	156 (2)
O1—H1A⋯N1ii	0.82 (2)	1.91 (2)	2.713 (2)	164 (2)

Symmetry codes: (i) ; (ii) .